Provide a unique output dir per set of source files. #23
+1
−1
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This is an attempt to make multiple rules_antlr invocations work without sandboxing (eg on Windows, where there's no sandbox). Test with --spawn_strategy=local.
Before, the AntlrRules.java code would fail, as it'd find generated grammar files without sandboxing it didn't know about.
Fix this by providing a unique directory per grammar that's being compiled.
The code that throws the exception is https://github.com/marcohu/rules_antlr/blob/master/src/main/java/org/antlr/bazel/AntlrRules.java#L619.